/Engine/Plugins/MeshPainting/Source/MeshPaintingToolset/Public/MeshVertexPaintingTool.h
Per vertex action function used for painting vertex data
void ApplyVertexData ( [FPerVertexPaintActionArgs](API\Editor\MeshPaint\FPerVertexPaintActionArgs) & InArgs, int32 VertexIndex, [FMeshPaintParameters](API\Editor\MeshPaint\FMeshPaintParameters) Parameters )